Wrench



Feb. 10.;1925.

J. J. SHERBECK WRENCH Filed March 19. 1923 V INVENTOR Jicli fflfierbeck Mm ATTORNEY Patented Feb. 10, 1925.

stares rarnr JACK J. SHERBECK, OF REDMOND, WASHINGTON.

WRENCH.

Application filed March 19, 1923. Serial No. 625,967.

T 0 all whom it may concern:

Be it known that I, JACK J Srmnsnok, a citizen of the United States, residing at Redmond, in the county of King and State of Washington, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches of the adjustable jaw type andis designed to improve the general construction of tools of this character.

A further object of the invention is to produce a wrench of simple, strong and durable construction, which is quickly regulated for various kinds and sizes of work,

and wnich will be eiiicient in operation.

More specific objects and advantages of the invention will appear in the following specification.

The invention consists in the novel construction, adaptation and combination of parts hereinafter described and claimed.

In the accompanying drawing, in which similar reference numerals designate corresponding parts in all of the views,-

Figure 1 is a sectional side elevation of my improved wrench shown in engaged relations with the work. Fig. 2 is aside elevation of the wrench shown in Fig. 1 and illustrating the wrench parts in the positions which they assume when retracting the wrench with respect to the work. Fig. 3 is a sectional side elevation showing a modified construction.

In said drawings, the reference numeral 5 designates the stock or shank formed to provide a handle 6 at one end thereof. Adjacent its other end said shank is connected by means of a pivot 7 to a jaw 8, hereinafter designated as the outer jaw, which is integral with a stem 9. This stem extends at approximately right angles from the stem at one side of said shank and serves as asupport upon which is slidably mounted a second jaw 10, hereinafter designated as the inner jaw.

The opening for the stem 9 in the jaw 10 is formed to provide a clearance as at 11 to accommodate angular movements of the inner jaw with respect to the stem. 12 represents a sleeve mounted upon the shank 5 and, as shown in Figs. 1 and 2, is con nected by means of a link 13 with the inner jaw.

The front side of the sleeve aperture 14 through which the shank 5 extends is serrated to provide teeth 15 which are yieldingly held by a spring 16 in engagement with ratchet teeth 17 provided along the front of the shank.

In the form of the. invention shown in Fig. 3, the inner jaw 10, instead of being connected by a link 13 (Figs. 1 and 2) with the sleeve 12, is provided with an extension 10 which is pivotally connected by a pin '18 directly to the sleeve.

The construction of my improved wrench is such that the outer jaw-stem 9 and the link 13-or the inner jaw extension 10 in the Fig. 3 formconstitute toggle elements with a sliding connection therebetween which is afforded by the sleeving of the inner jaw on the stem element 9.

The wrench is adjusted, as to a nut N for example, by positioning the stem 9 in approximately parallel relations with the shank 5 and then sliding the sleeve 12 upon the shank to locate the inner jaw 10 into work engaging relations with respect to the outer jaw as illustrated in Fig. 1. By swinging the handle forwardly as indicated by arrow 02, the jaws are subjected to strains which serve to retain the toggle mechanism in position to hold the jaw 10 in its work engaging position. By swinging the handle in the opposite direction, indicated by arrow 3 in Fig. 2, the work causes the toggle mechanism to flex, as shown, thereby increasing the opening between the jaws, as illustrated in Fig. 2, and permit the wrench turning without removing the same from the work and independently thereof.

What I claim is,-

1. In a wrench formed with a shank and having a slidable member mounted on the shank, a pair of jaws mounted for pivotal movement toward and away from each other, one of said jaws being carried by the shank, pivotal means connecting the remaining jaw with the slidable member for swinging movement toward and away from the shank, and means independent of the shank connecting said jaws whereby to simultaneously induce their relative pivotal movement.

2. In a wrench formed with a shank and having a sleeve mounted for sliding movement on the shank, a pair of jaws mounted for pivotal movement toward and away from each other, one of said jaws being carried by the shank, a link pivotally connected at its ends with the sleeve and the re.-

niaining jaw whereby to permit swinging movement of said jaw toward and away from the shank to decrease or increase respectively the distance between said jaws, and means independent of the shank connecting said jaws whereby to simultaneously induee'their relative pivotal movement.

3. In a wrench formed with a shank and having a sleeve mounted for sliding movement on the shank a pair of swingable members operatively connected for pivotal movement respeetively with the shank and sleeve and arranged'to swing with their adjacent ends in relatively intersecting orbits, and a pair of jaws connected with said swingable members and controllable by the movement of said members 'to exert clamping action upon an object engaged therebetween.

at. In a wrench formed with. a shank and having a sleeve mounted for sliding moveinent on the shank, a jaw pivotally connected with the shank, a stem eonneeted with the jaw, a'link connected with the sleeve, said stem and link being adapted to swing toward and away "from the shank with their adjacent ends in relatively intersecting orbits, and another jaw connected for pivotal movement to both the link and the stem for cooperation with the firstqnentioned jaw to clamp an object therebetween.

Signed at Seattle, Washington, this 6th dayof March, 1923.

JACK J. SHERBECK.

fv' itnesses iinnnn B NES, M. G. SUPPLE. 

